Film-reel.



, A. F. .SCHROEDER.

FILM REEL.

APPLICATION FILED H.161 I915.

Patented Oct. 3, 1916.

I Mom #135,27- [SC/120E052 nu: mums vnL-ks cu ALBERT F. SCI-IROEDER, OF CLEVELAND, OHIO.

FILM-REEL.

Specification of Letters Patent.

Patented Oct. 3, 1916.

' Application filed February 16, 1915. Serial No. 8,469. i

To all whom it may concern Be it known that I, ALBERT F. SoHRonDnR, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented a new and useful Improvement in Fil1n-Reels, of which the following is a specification, the principle of the invention being herein explained and the best modein which I have contemplated applying that principle, so as to distinguish it from other inventions.

This invention appertains to film reels and more particularly to the manner of attaching the common springfinger employed to hold the end of a film against the drum of the reel, preparatory to winding thereon.

My object has been to devise this accessory to a reel structure of the character stated, which shall be ellicacious and withal simple and hence economical of manufacture.

A further object has been to afford facility of assemblage and incidentally capability in the way of easy and ready replacement by disassemblage.

The inventive conception is associated with elements which are hereinafter ex plained and variously combined in the claims.

IVhile the annexed drawing and particular description thereof set forth the preferred form embodying my invention, it should be understood that the means merely exemplify many diversified mechanical forms with which the principle of my invention may be properly applied.

Considering next the-drawings throughout the several views of which like numerals of reference consistently designate like parts, the views illustrate a preferred exemplification and three modified forms.

Figure I is a perspective view of the type of reel requiring my inventive accessory. Fig. II is a plan view of the cylindrical hub of the reel embodying my invention. Fig. III is a section of Fig. II showing the inside of the same portion of the hub as is shown in said figure. Fig. IV is a partial section on line l l of Fig. II. Fig. VI is a broken view similar to Fig. II of a modification. Fig. V is a view corresponding to Fig. IV of the same modification. Fig. VII is a complete medial section of a hub embodying a second modification of my invention. Fig. VIII is a plan of the same corresponding to sory of the hub. This latter is provided,

according to. the design shown in Figs. I to IV, with an irregularly edged aperture including a pair of laterally elongated apertural portions 5 in this instance interconnected by an intercommunicating portion 6 to form on each side intermediately of the apertural portions 5 a pair of lugs 7. A spring finger 8 of arcuate formation, and in fact of curvature having a'shorter radius than thatof the hub, is inserted in both of the portions 5 so as to underlie the lugs 7 as its purpose is clearly shown in Fig. IV. In practice the lugs 7 maybe formed so as to pro ect outwardly thereby permitting the spring finger 8 to be laid therebetween. Thereafter the lugs 7 are to be hammered down and preferably to an extent sulficient to impress a pair. of offsets and thus form a slight depression 9 into the finger at that point. If preferred such depression may be imparted to-the finger previous to its insertion inthe hub. The outer extremities 10 of the finger 8 are slightly curved outwardly to facilitate manual lifting from the periph cry .of the drum. Owing to the formation ofthe finger S, and its own resilience the extremities 10 are caused to have yielding engagement with opposite sides of the hub whereby either may serve the purpose of a catch for securing the end of a film roll preparatory to winding upon the hub.

The advantage of my specific film securing accessory in addition to the simplicity and economy of manufacture lies in the readiness which is afforded ofreplacing a depreciated or fractured finger with another. In order to take out the spring finger, all that has to be done is to bend the lugs out again far enough to allow of easily removing the finger.

The modification with which Figs. V and VI have to do is one of simplification in respect to the formation of the hub, in that the periphery 11 of the hub is merely fashioned with two apertures 12 leaving a separating 7 portion 13 therebetween. The spring finger 14 is moreover initially formed in its middle with a more pronounced pair of offsets forming the depression 15 adapted to be occupied, when assembled, by the portion 13 as in Fig. VI. In this exemplification the tendencies of the extremities of the finger 14 to push downwardly against the periphery of the hub results in holding the depression 15 against the portion 13. Incidentally the finger is held in place by the occupation of such depression on the part of said portion 13. When it is desired to separate or remove the spring finger 1 1 it is only necessary to apply downward or inward pressure over the apertures 12 which disengages the ofisets of the depression 15 from the portion 13, and thereby permits the spring finger to be withdrawn.

Figs. VII, VIII and IX relate to a modification wherein the hub 16 is fashioned with a pair of lugs 17 pressed inwardly from opposite directions as well shown in Fig. VII, and as a result of which narrow apertures 18 come into being. The apertures 18 are separated by an interjacent portion 19, and the center of this portion is in turn indented at 20. A similar spring finger 21 having its middle section slightly depressed at 22, and its center perforated at 23, 1s then inserted until the indentation occupies the perforation to effect a sufficiently secure look. If desired the lugs 17 may later be forced back toward their original position whereby the edges of the depression 22 may become more pronounced and the locking effect between the hub and the spring finger 21 become more permanent.

I claim:

1. A film reel comprising a pair of heads, a hub secured therebetween, said hub being provided with a pair of apertural portions, and a duplex clamping finger including parts passed through said apertural portions, the two extremities of the said finger yieldingly .engaging said hub.

2. A film reel comprising a pair of circular heads, a cylindrical hub concentrically secured therebetween, said hub being provided with an aperture, an arcuate finger having one portion offset and passed through said aperture, and a plurality of lugs carried.

' hold said member in place, the arrangement being such that one extremity of such mem ber yieldingly engages said hub surface.

4. A film reel comprising a pair of heads, a hub secured therebetween and provided vwith a pair of closely adjacent intercommunicating apertural portions, the arrangement being such that lugs are formed, and a resilient member extending through said apertural portions and underlying said lugs, said member being fashioned with a depression in which said lugs are seated.

5. A film reel comprising a pair of heads, a cylindrical hub secured therebetween and provided in its outer surface with a pair of apertural portions, a resilient arcuate member having a curvature of shorter radius than said hub surface and extending through each of said apertural portions, the extremity of said member being upturned and bearing against the outer surface of said hub, and means for establishing a ,lock connection between said hub and member intermediately of said apertural portions.

6. A film reel comprising a pair of heads, U

a hollow hub connecting the same and fashioned with an aperture. having constricted interjacent portions whereby to form a pair of lugs in the plane of said hub, and a spring finger formed with an inwardly exin tending depression adapted to be occupied by said lugs whereby said finger is held in place, said lugs being sufliciently flexible to permit of being bent and allow the removal of said finger.

7. A film reel comprising a pair of heads, a tubular hub secured therebetween, said hub being provided with an aperture, and a duplex clamping contrivance having an interjacent portion depressed in said aperture, the extremities of said contrivance yieldingly engaging the exterior surface of said hub, and a pair of lugs projected from said hub on opposite sides of said aperture respectively and adapted to bear against said contrivance whereby to hold the same in place, said lugs being capable of movement relative to the hub to facilitate the positioning of said contrivance.

8. A film reel comprising a i of heads7 a hollow hub of thin metal secured therebetween, said hub being provided with an irregularly shaped aperture in communication with the hollow interior, such aperture being narrowed between its ends and along the surface of the hub to form an integral flexible device projected in a direction substantially parallel to the axis, and a spring finger having one portion offset in an inward direction to form a depression inserted in said aperture and secured inwardly of said hub, such depression adapted to accommodate said device, another portion of said finger being adapted yieldingly to engage the periphery of such hub, the arrangement being such that the depression of said finger may be withdrawn past an edge of said aperture when the device is flexed without disassembling the reel.

9. A film reel comprising a pair of heads, a tubular hub connecting the same and having an aperture through one portion of its peripheral surface, a finger inserted in and engaging said hub on oppositely disposed sides of said aperture, and flexible means projected from said hub between said sides and adapted to engage an outer surface of said finger to hold it in place.

10. A film reel comprising a pair of heads, a hub connecting the same and having a pair of apertural portions, a duplex clamping contrivance having an interjacent portion inserted in and engaging said hub exteriorly on the far sides and interiorly on the near sides of said apertural portions, and means for holding such interjacent portion of said contrivance in place.

11. A film reel comprising a pair of heads, a hub of thin sheet steel secured the-rebetween and provided with an irregular aperture of smaller interjacent dimension and opening therethrough, the arrangement being such that a plurality of flexible lugs are provided, and a spring finger depressed into said aperture and having its outer end engaging the outer surface of the hub, said lugs adapted to bear against the outer exppsed surface of said finger to hold it in ace. p 12. A film reel comprising a pair of heads, a hollow hub of thin metal secured therebetween, said hub being provided with an irregularly shaped aperture in communication with the hollow interior, a resilient arcuate finger of uniform width substantially conforming in such dimension to the width of the aperture measured in a direction parallel to theaxis of the hub, said finger having an offset between its ends, one end being inserted in said hub through said aperture and abutting an interior surface of said hub immediately adjacent said aperture, said interior surface being contrived as a pair of lugs for securing said end in place whereby the opposite end yieldingly engages the exterior surface of said hub.

13. A film reel comprising a pair of heads, a hollow hub secured therebetween and provided with an aperture, a spring finger inserted into said aperture, portions of said hub bordering upon said aperture along oppositely disposed edges thereof in a direction substantially parallel to the axis of the hub being adapted to engage and hold said finger in place, whereby an outer end of said finger is held in yielding engagement with the hub.

14. A film reel comprising a pair of heads, a hollow hub secured therebetween and pro "ided with an aperture, a spring finger inserted into said aperture, a plurality of portions of said hub bordering along opposite edges of said aperture being adapted to engage the inserted portion of said finger, said finger including an offset portion coacting with such bordering hub portions whereby the outer ends of said finger are held in yielding engagement with the hub.

15. A film reel comprising a pair of heads,

a hollow hub secured therebetween and provided with an aperture of irregular outline whereby oppositely projected lugs are formed integral with said hub, and a spring finger inserted in said aperture so as to be engaged and held in place by said lugs, said finger furthermore havin its inserted portion fashioned with an offset engaged by an edge of said aperture whereby to facilitate the proper positioning of the parts.

Signed by me, this 18th day of February,

ALBERT F. SCHROEDER. Attested by LYNN E. MUELLER, R. B. DANGELEISEN.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. G." 

